Apple's internal turmoil led to the delay of Siri AI features.OpenAI's ChatGPT received a positive response, but senior leaders at Apple didn't respond urgently.However, the software engineering group at Apple showed excitement about the potential of using OpenAI's models to improve the iPhone.Apple's Craig Federighi has given the green light to using third-party, open-source LLMs for the next generation of Siri and AI features.